How do 9-12 year old children observe and experience various types of violent films broadcasted on tv, and how does this observing and experiencing develop within this age-group. Perception of reality of tv films / frequency of watching tv / fear caused by watching tv films / appreciation of tv programs with and without violence / preference for programs with violence / perception of violence / opinion about quantity of violence in tv programs / concern of parents about violence on tv / questions about specific tv films. Background variables: basic characteristics/ education/ social class